This reprint of the single most important original source regarding the early history of Yosemite Valley was long out of print. Written by the medical officer of the Mariposa Battalion, the first group of Euro-Americans ever to enter Yosemite Valley, the book chronicles a number of key historical events beginning in 1851 including discovery, the Yosemite Indian conflicts, the naming of various landmarks and more. And what makes it so valuable is Dr. Bunnell's first-person perspective.